CN205417087U - Foaming formula car air relief valve - Google Patents
Foaming formula car air relief valve Download PDFInfo
- Publication number
- CN205417087U CN205417087U CN201521014498.3U CN201521014498U CN205417087U CN 205417087 U CN205417087 U CN 205417087U CN 201521014498 U CN201521014498 U CN 201521014498U CN 205417087 U CN205417087 U CN 205417087U
- Authority
- CN
- China
- Prior art keywords
- relief valve
- foaming
- air relief
- layer
- utility
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model provides a foaming formula car air relief valve, includes: matched with casing and rubber spare, wherein the casing constitution is: the casing skeleton PP layer and the TPE layer of foaming certainly. The utility model discloses the sealing washer drops and produces the risk of leaking in having eliminated the relief valve use.
Description
Technical field
This utility model relates to auto parts and components, particularly a kind of foaming type automobile air relief valve.
Background technology
For ensureing that the pressure of automobile interior exterior keeps balance, all can be equipped with air decompression in car.Air decompression is mainly made up of housing, sealing ring, sheet rubber.Housing is connected to above panel beating, and sealing ring is fixed in the middle of housing and panel beating, and sheet rubber enters only valve as gas.When the pressure of automotive interior is big, in car, gas pushes sheet rubber open, gets rid of gas and reaches the effect of pressure release.
Existing relief valve moulding process is: first injection PP housing, after PU is injected at housing upper face, complete foaming after standing 24H, foamed rear fit on sheet rubber.But the manufacture of the sealing ring in existing technique uses PU foam process, owing to foaming machine cost of investment is higher, the more difficult large scale investment of this technique uses.Relief valve adds the technological process of second time foaming, adds production cost.And owing to being that PU foaming is bonded together with PP housing, this bi-material is the physical bond of glue, has sealing ring and comes off thus the risk that causes air decompression to leak.
Utility model content
The purpose of this utility model is to provide a kind of foaming type automobile air relief valve, eliminates sealing ring during relief valve uses and comes off and produce the risk leaked.
For solving above-mentioned technical problem, this utility model includes: the housing matched and rubber parts, and its middle shell consists of: body frame PP layer and certainly foaming TPE layer.
The described thickness from foaming TPE layer is 5.5～6cm.Under this foam thickness, the assembly force≤50N required for client can be met, will not cause because of fit-up gap leaking again.
This utility model investment is little, and technique is easy to control, saves production cost, and eliminates sealing ring during relief valve uses and come off and produce the risk leaked.
Accompanying drawing explanation
Fig. 1 is assembling schematic diagram of the present utility model.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is described in further detail.
As it is shown in figure 1, the present embodiment includes: the housing 1 matched and rubber parts 2, wherein, housing comprises: body frame PP layer 3 and certainly foaming TPE layer 4.
First, during Making mold, the height of TPE material in double-shot moulding need to be designed, 1.8～2.0mm.
When carrying out part production.Use double-shot moulding from foaming TPE layer 4 with body frame PP layer 3, produce relief valve housing 1.During injection mo(u)lding, strict control TPE injection height 1.8～2.0mm, it is impossible to have overlap or shrink；
Housing 1 is stood after molding.By housing 1, putting into the constant temperature room of 23 DEG C, TPE layer 4 can be from foaming to 5.5～6cm after 4H.The foaming layer of this thickness is assemblied on panel beating, can meet the assembly force requirement of client, can eliminate again that gap is little and the risk leaked.
Finally, the housing 1 that will have foamed, fit on sheet rubber 2 i.e. completes the production of one-piece parts.
Below the preferred embodiment created this utility model is illustrated, but this utility model is created and is not limited to described embodiment, those of ordinary skill in the art can also make modification or the replacement of all equivalents on the premise of this utility model creative spirit, and these equivalent modifications or replacement are all contained in the application claim limited range.
Claims (2)
1. a foaming type automobile air relief valve, it is characterised in that including: the housing matched and rubber parts, its middle shell consists of: body frame PP layer and certainly foaming TPE layer.
Foaming type automobile air relief valve the most according to claim 1, it is characterised in that the described thickness from foaming TPE layer is 5.5～6cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521014498.3U CN205417087U (en) | 2015-12-09 | 2015-12-09 | Foaming formula car air relief valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521014498.3U CN205417087U (en) | 2015-12-09 | 2015-12-09 | Foaming formula car air relief valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205417087U true CN205417087U (en) | 2016-08-03 |
Family
ID=56516524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521014498.3U Expired - Fee Related CN205417087U (en) | 2015-12-09 | 2015-12-09 | Foaming formula car air relief valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205417087U (en) |
-
2015
- 2015-12-09 CN CN201521014498.3U patent/CN205417087U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Beilun Daqi dam Head Road 315806 in Zhejiang province Ningbo City No. 333 Patentee after: According to work (Ningbo) electronic components fastening device Co., Ltd. Address before: Beilun Daqi dam Head Road 315806 in Zhejiang province Ningbo City No. 333 Patentee before: Tianhe (Ningbo) electronic component fastening device Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160803 Termination date: 20161209 |